Sight for gun-barrels.



No. 755,665. PATENTED MAR. 29. 1904. D. H. HOLMAN. SIGHT FOR GUNBARRELS.

APPLICATION FILED D110. 10; 1903.

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Wifgzsscs @J UNITED STATES Patented March 29, 1904.

PATENT OFFICE.

DANIEL H. HOLMAN, OF MOSCOW, IDAHO.

SPECIFICATION forming part of Letters Patent No. 755,665, dated March29, 1904.

Application filed December 10,1903. Serial No. 184,633. (No model.)

To aZZ whm it Wmy concern.-

Be it known that I, DANIEL H. HOLMAN, a citizen of the United States,residing at Moscow, in the county of Latah and State of Idaho, haveinvented a new and useful Sight for Gun- Barrels, of which the followingis a specification.

This invention relates to sights for gun-barrels; and it contemplatesthe provision of a sight capable of presenting differentdesignating-marks to the vision of the person firing the gun.

In providing combination-sights where different designating-marks arebrought within the observers vision one of the designatingmarks isusually carried by some hinged or folding part, and in order to obtainthe best results it is advisable to positively insure the immobility ofthe hinged part when in its operative and inoperative positions, so asnot to disturb the line of vision except in the proper manner.

Oneof the objects of the invention is to insure the proper operation ofthe device and to provide a sight which can be readily applied to anordinary gun without materially altering the construction thereof.

Further objects and advantages of this invention will appear in thefollowing description, and the novel features thereof will beparticularly pointed out in the appended claims, it being understoodthat changes in the form, proportion, and the minor details ofconstruction may be resorted to without departingfrom the spirit orsacrificing any of the advantages of this invention.

In the drawings, Figure 1 is a fragmentary perspective view of agun-barrel, showing my invention applied. Fig. 2 is an enlarged view inelevation of the sight, parts of which are shown in section. Fig. 3 is adetail perspective view of the sight-base. Fig. lis a detail perspectiveview of the movable sight part, and Fig. 5 is a detail perspective viewof the spring.

The reference-numeral '1 designates the gunbarrel, having a groove 2 forthe receptionof the base 3. The base is provided with a groove 4 for thereception of the rigid part 5 of the sight, which is provided with a lug6 for insertion through the opening 7 in the base 3, whereby the sightand base may be fastened by driving a transversely-disposed lockingpin 7through the lug, so that the parts will be held together. One end of therigid part is provided with a designating-mark 8, arranged in properalinement with the barrel, and preferably this designating-mark willconsist of some suitable bead, such as bone, ivory, or, in fact, it mayconsist of a painted spot used to indicate the proper position of thegun-barrel in order that the projectile will be propelled toward thetarget. The designating-mark on this rigid part will be used in ordinaryshooting or when the weather is clear; but when the weather is not cleara secondary or auxiliary designating-mark will be employed. In order toproperly mount the auxiliary mark, the rear of the rigid part isbifurcated to form parallel flanges 9 and 10,

between which the movable part 11 is pivoted, so that the head 12thereof will aline with the mark 8 on the part 5. In the event that ahead or other convex body is set in the rigid part of the sight one endof the head 12 will be recessed, as at 13, so as to fit over the headwhen the two parts are together. The lower end of the movable part ofthe sight is in the form of a cam, which abuts against a flat spring14:,which presses thereagainst so as to hold it in one of the twopositions in which it may be adjusted. The spring 14 is provided with aterminal head 15 transversely disposed so that it can be seated in thetransverse edge-recess 16 in the rigid part of the sight. When thetransverse head on the spring is in engagement with the recess 16, thespring is disposed between the flanges of the rigid part so that thehead forms the fulcrum for the spring, permitting. the free end 17 toyieldsufiiciently to allow the cam to move, but said spring will havesufiicient tension to hold the movable part in its adjusted position.When the parts are assembled, the head of the spring will be heldagainst displacement by the floor of the groove in the base 3, the edgeof the notch or recess 16 abutting against said floor.

The designating-mark 18 carried by the head of the movable part will beof some bright part is adjusted to a position against the rigid part,which adjustment can be effected in a convenient and obvious manner.

The sight is preferably provided at its back end with a rivet 19,extending transversely therethrough to support the end of the spring togive the spring more strength and make it more solid.

What I claim, and desire to secure by Let-' ers Patent, is

1. A sight comprising a base, a rigid member detachably carried by thebase, a spring clamped between the base and the rigid member, and amovable member pivoted to said rigid member and bearing upon the spring.

2. In a sight, the combination with a fixed sight member and a movablesight member, of parallel flanges carried by the fixed member andbetween which the movable member is pivoted and a spring carried by oneof the members and bearing against the other member to hold the movablemember rigid in its adjusted position.

3. A sight comprising a base,a rigid part detachably carried by the baseand having parallel flanges, a spring clamped between the base and therigid part, and a movable part pivoted between the flanges and bearingupon the spring.

4:. A sight comprising a rigid member having a convex designating markor head, a pivoted movable member having a mark and a concavityregistering with the bead on the rigid member, a spring carried by therigid member, said movable member having an angular heel adjacent itspivotal point against the diflerent sides of which the spring bears torigidly hold the movable member in its adjusted positions, the concaveportion of said movable member fitting against the bead of the rigidmember when the movable member is in operative position.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in the presence of two witnesses.

DANIEL H. HOLMAN.

- Witnesses:

H. R. SMITH, C. L. QUITMAN.

